Rachel Bilson RBilson102908_08_X17.jpg

Go her!

Check out the O.C. alum taking her pups for a walk at Griffith Park yesterday afternoon. When our photogs asked the TV cutie who she was voting for, she made sure to say "Obama!"

So clearly she loves her canines and the Democratic candidate... but what about Hayden Christensen? They're supposed to be dating and we NEVER see them together!